– Designed specifically for Shimano 12 speed HG+ chains
– Elliptical shape for improved power transmission
– CNC machined aluminum ring fits Race Face cranks with Cinch System
– Engineered proprietary tooth profile maintains the quiet and smooth performance of the HG+ drivetrain with legendary Wolf Tooth chain retention
– Prevents premature ring and chain wear that can come from non-optimized profile
– Made in the USA from 7075-T6 aluminum alloy